"I'm not sure I see your point"
I think everybody else can. this thread is about walkers not shufflers,

Again the rules

2.2
Legged Robots
Legged Robots [Walkers] can weigh up to twice the specified weight in all classes. A walker must employ moveable legs to support its weight. Each leg must have at least 2 degrees of freedom.
"Robots with rolling or sliding mechanisms will not be classified as walkers."

this one had rolling sliding mechanisms. not legs.